2003 NISSAN X-TRAIL turn signal

EC-800
[YD]
GLOW CONTROL SYSTEM
7.CHECK GLOW INDICATOR LAMP OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal D2 and combination meter terminal 65 or 55. Refer to
Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors M63, F30
lHarness for open or short between combination meter and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.CHECK COMBINATION METER
Check combination meter and glow indicator lamp. Refer toDI-4, "
COMBINATION METERS (LHD MODELS)"
orDI-22, "COMBINATION METERS (RHD MODELS)"andDI-39, "WARNING LAMPS".
OK or NG
OK >> GO TO 17.
NG >> Repair or replace combination meter or glow indicator lamp.
10.CHECK GLOW RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect glow relay.
3. Check voltage between glow relay terminals 1, 3 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.Continuity should exist.
PBIB0373E
Voltage: Battery voltage
PBIB0427E

EGR VOLUME CONTROL SYSTEM
EC-803
[YD]
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EGR VOLUME CONTROL SYSTEMPFP:14710
DescriptionEBS0035N
SYSTEM DESCRIPTION
This system controls flow rate of EGR led from exhaust manifold to intake manifold. The opening of the EGR
by-pass passage in the EGR volume control valve changes to control the flow rate. A built-in step motor
moves the valve in steps corresponding to the ECM output pulses. The opening of the valve varies for opti-
mum engine control. The optimum value stored in the ECM is determined by considering various engine con-
ditions.
The EGR volume control valve remains close under the following conditions.
lEngine stopped
lEngine starting
lLow engine coolant temperature
lExcessively high engine coolant temperature
lHigh engine speed
lWide open throttle
COMPONENT DESCRIPTION
EGR Volume Control Valve
The EGR volume control valve uses a step motor to control the flow
rate of EGR from exhaust manifold. This motor has four winding
phases. It operates according to the output pulse signal of the ECM.
Two windings are turned ON and OFF in sequence. Each time an
ON pulse is issued, the valve opens or closes, changing the flow
rate. When no change in the flow rate is needed, the ECM does not
issue the pulse signal. A certain voltage signal is issued so that the
valve remains at that particular opening.
CONSULT-II Reference Value in Data Monitor ModeEBS0035O
Specification data are reference values.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (TDC) Engine speed
EGR volume con-
trolEGR volume control
valve Vehicle speed sensor Vehicle speed
Engine coolant temperature sensor Engine coolant temperature
Ignition switch Start signal
Accelerator pedal position sensor Accelerator pedal position
Mass air flow sensor Amount of intake air
Air conditioner switch Air conditioner operation
SEF908Y
SEF411Y

EC-804
[YD]
EGR VOLUME CONTROL SYSTEM
ECM Terminals and Reference Value
EBS0035P
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
MONITOR ITEM CONDITION SPECIFICATION
EGR VOL CON/V
lEngine: After warming up
lAir conditioner switch: OFF
lShift lever: Neutral position
lNo-loadAfter one minute at idle More than 10 steps
Revvingenginefromidleto3,600
rpm0step
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
A8
A9R
RPower supply for ECM[Ignition switch "ON"]BATTERY VOLTAGE
(11 - 14V)
B3
B4
B5
B6W
OR/B
W/L
GYEGR volume control valve[Engine is running]
lWarm-up condition
lIdle speed0.1 - 14V
(Voltage signals of each ECM ter-
minals differ according to the con-
trol position of EGR volume
control valve.)
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
lFor a few seconds after turning ignition
switch "OFF"Approximately 0V
[Ignition switch “OFF”]
lA few seconds passed after turning ignition
switch "OFF"BATTERY VOLTAGE
(11 - 14V)

EC-806
[YD]
EGR VOLUME CONTROL SYSTEM
Diagnostic Procedure
EBS0035R
1.CHECK EGR VOLUME CONTROL SYSTEM OVERALL FUNCTION
1. Turn ignition switch “OFF”.
2. Set the oscilloscope probe between ECM terminals B3, B4, B5, B6 and ground.
3. Start engine and let it idle.
4. Check the oscilloscope screen when revving engine up to 3,200 rpm and return to idle.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2.CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-I
1. Turn ignition switch “OFF”.
2. Disconnect EGR volume control valve harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between EGR volume control valve terminals 2, 5
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.The pulse signal as shown in the figure should appear.
PBIB0430E
PBIB0380E
Voltage: Battery voltage
PBIB0431E

EC-808
[YD]
EGR VOLUME CONTROL SYSTEM
7.CHECK EGR VOLUME CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals and EGR volume control valve terminals as follows.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8.CHECK EGR VOLUME CONTROL VALVE
Refer toEC-808, "
Component Inspection".
OK or NG
OK >> GO TO 9.
NG >> Replace EGR volume control valve.
9.CHECK INTERMITTENT INCIDENT
Refer toEC-699, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS003Q0
EGR VOLUME CONTROL VALVE
With CONSULT-II
1. Disconnect EGR volume control valve harness connector.
ECM terminal EGR volume control valve terminal
B3 4
B4 3
B5 6
B6 1
Continuity should exist.
PBIB0380E

EC-812
[YD]
BRAKE SWITCH
Diagnostic Procedure
EBS009K1
1.CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch "ON".
2. Select "BRAKE SW" in "DATA MONITOR" mode with CON-
SULT-II.
3. Check "BRAKE SW" signal under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2.CHECKSTOPLAMPSWITCHPOWERSUPPLYCIRUIT
1. Turn ignition switch "OFF".
2. Disconnect stop lamp switch harness connector.
3. Check voltage between stop lamp switch terminal 1 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTION PART
Check the following
l15A fuse
lFuse block (J/B) connector M2
lHarness for open and short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
Conditions BRAKE SW
Brake pedal released OFF
Brake pedal slightly depressed ON
PBIB0472E
PBIB0379E
Voltage: Battery voltage
PBIB0117E

BRAKE SWITCH
EC-813
[YD]
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4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch "OFF".
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal D25 and stop lamp switch terminal 2. Refer to Wiring
Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following
lHarness connectors F30, M63
lJoint connector-2 M49 (LHD models)
lJoint connector-3 M72 (RHD models)
lHarness for open and short between stop lamp switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK STOP LAMP SWITCH
Refer toEC-813, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace stop lamp switch.
7.CHECK INTERMITTENT INCIDENT
Refer toEC-699, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS009L1
STOP LAMP SWITCH
Check continuity between stop lamp switch terminals 1 and 2 under
the following conditions.Continuity should exist.
Conditions Continuity
Brake pedal fully released Should not exist.
Brake pedal depressed Should exist.
PBIB0118E

EC-816
[YD]
PARK/NEUTRAL POSITION (PNP) SWITCH
Diagnostic Procedure
EBS009K6
1.CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CON-
SULT-II.
3. Check “P/N POSI SW” signal under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2.CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect park/neutral position (PNP) switch harness connec-
tor.
3. Check harness continuity between PNP switch terminal 2 and
body ground. Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or con-
nectors.
3.CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal E13 and PNP switch terminal 1. Refer to Wiring Dia-
gram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK PARK/NEUTRAL POSITION SWITCH
Refer toMT-13, "
POSITION SWITCH".
OK or NG
OK >> GO TO 5.
NG >> Replace park/neutral position switch.
Shift lever position P/N POSI SW
Neutral position ON
Except the above position OFF
SEF212Y
Continuity should exist.
PBIB0370E
Continuity should exist.